$ git clone -n https://src.fedoraproject.org/rpms/freeradius.git /var/lib/mock/f41-build-813528-148684/root/chroot_tmpdir/scmroot/freeradius
Cloning into '/var/lib/mock/f41-build-813528-148684/root/chroot_tmpdir/scmroot/freeradius'...
$ git fetch origin bf421ace1262bb0115fc4fb5be5021a242abb85b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeradius
 * [new ref]         bf421ace1262bb0115fc4fb5be5021a242abb85b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf421ac Include openssl-devel-engine build dependency